EP 0089285 A2 19830921 - Self-contained breathing apparatus with provision for shared use.
Title (en)
Self-contained breathing apparatus with provision for shared use.
Title (de)
Unabhängiges Atmungsgerät mit Einrichtung zur gemeinsamen Benutzung.
Title (fr)
Appareil respiratoire autonome avec possibilité d'usage commun.
Publication
Application
Priority
US 35850482 A 19820315
Abstract (en)
A self-contained breathing apparatus comprising a portable tank (10) containing a supply of breathing air under high pressure, a main pressure regulator (33) for reducing the pressure of air from the tank to a moderate level, a face mask (41) having a demand valve (39) mounted thereon which receives air from the main pressure regulator through a main supply hose (37) and which controls the pressure and flow thereof to meet the user's requirements, a bypass pressure regulator (35) and flow control means (36) which receive air from the tank and control the pressure and flow of air to the mask, through a separate bypass hose (42), to provide breathing air to the mask in the event of a fault in the main breathing circuit. <??>According to this invention, the bypass hose (42) is attached to the bypass pressure regulator and flow control by means of a manually operable quick disconnect coupling (43), enabling emergency sharing of the air supply by a second, similarly equipped user. <??>For use by firemen or other people working in hazardous atmospheres.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0089285 A2 19830921; EP 0089285 A3 19840321; CA 1186587 A 19850507; US 4449524 A 19840522
DOCDB simple family (application)
EP 83400508 A 19830311; CA 413497 A 19821015; US 35850482 A 19820315